HYDROGEN CERTIFIED PIPES: X70M high grade HFW pipes succeed in qualification tests for hydrogen (ASME CODE)

HYDROGEN CERTIFIED PIPES
X70M high grade HFW pipes succeed in qualification tests for hydrogen (ASME CODE)
Long term fracture toughness testing of CPW high grade / heavy gauge HFW pipes in a major European research center, verified material compliance to ASME B31.12 code and enhanced resistivity to hydrogen embrittlement.

CONCLUSIONS
The certification of pipes for the transportation of pure gaseous hydrogen or H2/NG gas mixtures without additional design pressure limitations can be realized if the pipe material’s fracture resistance properties are qualified under design “Option B” of code ASME B31.12. The respective qualification tests require the long-term exposure of artificially pre-cracked specimens under high pressure 100% H2 conditions.
Following the above qualification scheme, Corinth Pipeworks organized a series of relevant tests for High Frequency welded pipe in grade X70M. All tests were accomplished in an acknowledged external research institute, highly experienced in hydrogen testing and fracture mechanics. 
According to the obtained test results…
Read more on the results of our tests that bring the hydrogen era closer